[mimp] no domain set in From: when composing mail

[Alain Fauconnet]

Hello readers,

Horde-3.0.5, Mimp-h3-1.0-alpha

When users select 'Compose', the From: field comes up
as "user@" (no domain).

This doesn't happen if that user has set up an explicit From: address
in his default identity (in that case the From: comes up OK).

In MIMP's server.php, 'maildomain' is set correctly:

$servers['mymail'] = array(
    'name' => 'mymail.ait.ac.th',
    'server' => 'mymail.ait.ac.th',
    'hordeauth' => false,
    'protocol' => 'imap/notls',
    'port' => 143,
    'folders' => '',
    'namespace' => 'INBOX.',
    'maildomain' => 'ait.ac.th',
    'smtphost' => 'mymail.ait.ac.th',
    'smtpport' => 25,
    'realm' => 'ait.ac.th',
    'preferred' => '',
    'dotfiles' => false,
    'hierarchies' => array()
);

The same setting works in IMP.

Am I missing something here? Should I open a bug?

Greets,
_Alain_